Saw vise of unknown origin

At $18 I feel that I got a good deal. The thing is I don’t know who made it. I looked on line, not extensively I might add, but found nothing. Perhaps a more thorough search is in order. In the mean time, would any of you know who might have manufactured this vise and when? Thanks for your input.

I’ve got one pretty similar, but it doesn’t have the plated front crank. Try looking all over it for some marks, they may be pretty faint and may not be visible until some of the rust comes off. I haven’t found any marks on mine. These were pretty common back in the day so if it doesn’t have a manufacturers mark it may be hard to tell who made it unless someone manages to recognize the design. If you can find a patent date on it, google that. It can be a good way to identify old tools.